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Two particles with masses ?1 = 3 ?? and ?2 = 2 ??, which slide as...

Two particles with masses ?1 = 3 ?? and ?2 = 2 ??, which slide as a unit with a common velocity ?0 = 2 ? ? on a level frictionless surface, have between them a compressed massless spring of force constant k = 50N/m. The spring, originally compressed by an amount s = 0.25m, is suddenly released, sending the two masses, which are not connected to the spring, flying apart from each other. a) What is the relative velocity of separation after the two particles lose contact? b) What is the velocity of the center of mass after separation? c) What are the velocities of the particles, with respect to the frictionless surface after separation?

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